<template>
  <div>
    <!-- 商品分类三级联动列表 -->
    <TypeNav />
    <div class="main">
      <div class="py-container">
        <!--bread-->
        <div class="bread">
          <ul class="fl sui-breadcrumb">
            <li>
              <a href="#">全部结果</a>
            </li>
          </ul>
          <ul class="fl sui-tag">
            <!-- 分类面包屑 -->
            <li class="with-x" v-if="searchParams.categoryName">
              {{ searchParams.categoryName
              }}<i @click="removeCategoryName">×</i>
            </li>
            <!-- 关键词面包屑 -->
            <li class="with-x" v-if="searchParams.keyword">
              {{ searchParams.keyword }}<i @click="removeKeyword">×</i>
            </li>
            <!-- 品牌面包屑 -->
            <li class="with-x" v-if="searchParams.trademark">
              {{ searchParams.trademark.split(":")[1]
              }}<i @click="removeTrademark">×</i>
            </li>
            <!-- 商品参数面包屑 -->
            <li
              class="with-x"
              v-for="(attrVal, index) in searchParams.props"
              :key="index"
            >
              {{ attrVal.split(":")[1] }}<i @click="removeProps(index)">×</i>
            </li>
          </ul>
        </div>

        <!-- selector  -->
        <!-- 绑定自定义事件 用于父组件接收从子组件元素里传来的值 -->
        <SearchSelector @func="reciveData" @getAttr="getAttrInfo" />

        <!--details-->
        <div class="details clearfix">
          <div class="sui-navbar">
            <div class="navbar-inner filter">
              <ul class="sui-nav">
                <!-- 当order中包含1才有选中样式 当前选中才有箭头 -->
                <li :class="{ active: isOne }" @click="changOrder(1)">
                  <a
                    >销量<span
                      v-show="isOne"
                      class="iconfont"
                      :class="{ 'icon-shengxu': isUp, 'icon-jiangxu': isDown }"
                    ></span
                  ></a>
                </li>
                <!-- 当order中包含2才有选中样式 当前选中才有箭头 -->
                <li :class="{ active: isTwo }" @click="changOrder(2)">
                  <a
                    >价格<span
                      v-show="isTwo"
                      class="iconfont"
                      :class="{ 'icon-shengxu': isUp, 'icon-jiangxu': isDown }"
                    ></span
                  ></a>
                </li>
              </ul>
            </div>
          </div>
          <!-- 商品列表 -->
          <div class="goods-list">
            <ul class="yui3-g">
              <li class="yui3-u-1-5" v-for="goods in goodsList" :key="goods.id">
                <div class="list-wrap">
                  <div class="p-img">
                    <router-link :to="`/detail/${goods.id}`">
                      <img :src="goods.defaultImg"/>
                    </router-link>
                  </div>
                  <div class="price">
                    <strong>
                      <em>¥</em>
                      <i>{{ goods.price }}.00</i>
                    </strong>
                  </div>
                  <div class="attr">
                    <a target="_blank" href="item.html" :title="goods.title">{{
                      goods.title
                    }}</a>
                  </div>
                  <div class="commit">
                    <i class="command">已有<span>2000</span>人评价</i>
                  </div>
                  <div class="operate">
                    <a
                      href="success-cart.html"
                      target="_blank"
                      class="sui-btn btn-bordered btn-danger"
                      >加入购物车</a
                    >
                    <a href="javascript:void(0);" class="sui-btn btn-bordered"
                      >收藏</a
                    >
                  </div>
                </div>
              </li>
            </ul>
          </div>
          <!-- 分页器 -->
          <Pagination  :pageNo="searchParams.pageNo" :pageSize="searchParams.pageSize" :total="total" :continues="5" @clickPage="getPage" />
        </div>
      </div>
    </div>
  </div>
</template>

<script>
// 引入selector子组件
import SearchSelector from "./SearchSelector";
import { mapGetters } from "vuex";
// 要向仓库拿数据 先引入 mapState
import { mapState } from "vuex"
export default {
  name: "Search",
  data() {
    return {
      searchParams: {
        category1Id: "",
        category2Id: "",
        category3Id: "",
        categoryName: "",
        keyword: "",
        props: [],
        trademark: "",
        // 1表示销量 2表示价格 asc表示升序 desc表示降序
        order: "1:desc",
        pageNo: 1,
        pageSize: 10,
      },
      breadList: [],
      trademark: "",
    };
  },
  components: {
    SearchSelector,
  },
  beforeMount() {
    // 挂载之前先将要带给服务器的数据整理好
    Object.assign(this.searchParams, this.$route.query, this.$route.params);
  },
  mounted() {
    // 页面初次渲染完成后发请求获取数据
    this.getData();
  },
  computed: {
    ...mapGetters(["goodsList"]),
    ...mapState({
      total:state => state.search.searchInfo.total
    }),
    // 如果order中包含1，则isOne为true，表示选中（销量）
    isOne() {
      return this.searchParams.order.indexOf("1") != -1;
    },
    // 如果order中包含2，则isTwo为true，表示选中（价格）
    isTwo() {
      return this.searchParams.order.indexOf("2") != -1;
    },
    // 如果order中包含包含asc，则isUp为true，表示升序
    isUp() {
      return this.searchParams.order.indexOf("asc") != -1;
    },
    // 如果order中包含包含desc，则isDown为true，表示降序
    isDown() {
      return this.searchParams.order.indexOf("desc") != -1;
    },
  },
  // 监听组件实例身上的属性的属性值的变化
  watch: {
    // 用户点击时会改变路由，监听监听路由变化，实现携参发请求
    $route(newVal, oldVal) {
      // 发请求前先将要带给服务器的数据整理好
      Object.assign(this.searchParams, this.$route.query, this.$route.params);
      // console.log(this.$route);
      this.getData();
      // 发完请求后清空分类id，免得下次发请求的时候带上
      this.category1Id = "";
      this.category2Id = "";
      this.category3Id = "";
    },
  },
  methods: {
    // 获取服务器的数据,将请求派发action封装成方法,这样可以多次调用
    getData: function () {
      this.$store.dispatch("getSearchInfo", this.searchParams);
      // console.log(this.searchParams);
    },
    // 移除分类名面包屑
    removeCategoryName() {
      // 移除分类,将传参的字段名设为undefined，这样发请求的时候就不带这个字段了，节省带宽。
      this.searchParams.categoryName = undefined;
      this.searchParams.category1Id = undefined;
      this.searchParams.category2Id = undefined;
      this.searchParams.category3Id = undefined;
      // 重新发请求，获取新的数据来渲染页面
      // this.getData();
      // 重新跳转到新的路由
      if (this.$route.params) {
        this.$router.push({ name: "search", params: this.$route.params });
      }
    },
    // 移除关键字面包屑
    removeKeyword() {
      this.searchParams.keyword = undefined;
      // 告知兄弟组件（Header）清除数据
      this.$bus.$emit("clear");
      // 重新发请求，获取新的数据来渲染页面
      // this.getData();
      if (this.$route.query) {
        this.$router.push({ name: "search", query: this.$route.query });
      }
    },
    // 移除品牌面包屑
    removeTrademark() {
      this.searchParams.trademark = undefined;
      // this.getData();
      // if()
    },
    // 移除商品参数面包屑
    removeProps(index) {
      // 删除点击的属性名称
      this.searchParams.props.splice(index, 1);
      this.getData();
    },
    // 接收子组件SearchSelector传关于品牌的值
    reciveData(data) {
      // console.log(data)
      // 将接收的值整理后并入searchParams
      this.searchParams.trademark = `${data.tmId}:${data.tmName}`;
      // 再次发请求获取相应数据
      this.getData();
    },
    // 接收子组件SearchSelector传关于商品属性的值
    getAttrInfo(attr, attrValue) {
      // 先将参数按住后端要求的形式拼接好
      let pro = `${attr.attrId}:${attrValue}:${attr.attrName}`;
      // 先判断数组里面有没有此属性,没有再把字符串push到数组里,这样就不会重复发一样的请求
      if (this.searchParams.props.indexOf(pro) == -1) {
        this.searchParams.props.push(pro);
      }
      // 处理好了要带给服务器的数据,发请求
      this.getData();
    },
    // 排序处理事件
    changOrder(flag) {
      let originFlag = this.searchParams.order.split(":")[0];
      let originOrder = this.searchParams.order.split(":")[1];
      let newOrder = "";
      // 先判断点的是不是原来的按钮，如果是，前面部分用回原始值，只改变升降序
      if (flag == originFlag) {
        newOrder = `${originFlag}:${originOrder == "asc" ? "desc" : "asc"}`;
      } else {
        // 如果不是原来的按钮，就将传过来的值保存起来，再将排序设置为默认的降序
        newOrder = `${flag}:'desc'`;
      }
      this.searchParams.order = newOrder;
      this.getData();
    },
    // 获取用户点击的页码
    getPage(page){
      this.searchParams.pageNo = page;
      // console.log(this.pageNo);
    }
  },
};
</script>

<style lang="less" scoped>
.main {
  margin: 10px 0;

  .py-container {
    width: 1200px;
    margin: 0 auto;

    .bread {
      margin-bottom: 5px;
      overflow: hidden;

      .sui-breadcrumb {
        padding: 3px 15px;
        margin: 0;
        font-weight: 400;
        border-radius: 3px;
        float: left;

        li {
          display: inline-block;
          line-height: 18px;

          a {
            color: #666;
            text-decoration: none;

            &:hover {
              color: #4cb9fc;
            }
          }
        }
      }

      .sui-tag {
        margin-top: -5px;
        list-style: none;
        font-size: 0;
        line-height: 0;
        padding: 5px 0 0;
        margin-bottom: 18px;
        float: left;

        .with-x {
          font-size: 12px;
          margin: 0 5px 5px 0;
          display: inline-block;
          overflow: hidden;
          color: #000;
          background: #f7f7f7;
          padding: 0 7px;
          height: 20px;
          line-height: 20px;
          border: 1px solid #dedede;
          white-space: nowrap;
          transition: color 400ms;
          cursor: pointer;

          i {
            margin-left: 10px;
            cursor: pointer;
            font: 400 14px tahoma;
            display: inline-block;
            height: 100%;
            vertical-align: middle;
          }

          &:hover {
            color: #28a3ef;
          }
        }
      }
    }

    .details {
      margin-bottom: 5px;

      .sui-navbar {
        overflow: visible;
        margin-bottom: 0;

        .filter {
          min-height: 40px;
          padding-right: 20px;
          background: #fbfbfb;
          border: 1px solid #e2e2e2;
          padding-left: 0;
          border-radius: 0;
          box-shadow: 0 1px 4px rgba(0, 0, 0, 0.065);

          .sui-nav {
            position: relative;
            left: 0;
            display: block;
            float: left;
            margin: 0 10px 0 0;

            li {
              float: left;
              line-height: 18px;

              a {
                display: block;
                cursor: pointer;
                padding: 11px 15px;
                color: #777;
                text-decoration: none;
              }

              &.active {
                a {
                  background: #e1251b;
                  color: #fff;
                }
              }
            }
          }
        }
      }

      .goods-list {
        margin: 20px 0;

        ul {
          display: flex;
          flex-wrap: wrap;

          li {
            height: 100%;
            width: 20%;
            margin-top: 10px;
            line-height: 28px;

            .list-wrap {
              .p-img {
                padding-left: 15px;
                width: 215px;
                height: 255px;

                a {
                  color: #666;

                  img {
                    max-width: 100%;
                    height: auto;
                    vertical-align: middle;
                  }
                }
              }

              .price {
                padding-left: 15px;
                font-size: 18px;
                color: #c81623;

                strong {
                  font-weight: 700;

                  // i {
                  //   margin-left: -5px;
                  // }
                }
              }

              .attr {
                padding-left: 15px;
                width: 85%;
                overflow: hidden;
                margin-bottom: 8px;
                min-height: 38px;
                cursor: pointer;
                line-height: 1.8;
                display: -webkit-box;
                -webkit-box-orient: vertical;
                -webkit-line-clamp: 2;

                a {
                  color: #333;
                  text-decoration: none;
                }
              }

              .commit {
                padding-left: 15px;
                height: 22px;
                font-size: 13px;
                color: #a7a7a7;

                span {
                  font-weight: 700;
                  color: #646fb0;
                }
              }

              .operate {
                padding: 12px 15px;

                .sui-btn {
                  display: inline-block;
                  padding: 2px 14px;
                  box-sizing: border-box;
                  margin-bottom: 0;
                  font-size: 12px;
                  line-height: 18px;
                  text-align: center;
                  vertical-align: middle;
                  cursor: pointer;
                  border-radius: 0;
                  background-color: transparent;
                  margin-right: 15px;
                }

                .btn-bordered {
                  min-width: 85px;
                  background-color: transparent;
                  border: 1px solid #8c8c8c;
                  color: #8c8c8c;

                  &:hover {
                    border: 1px solid #666;
                    color: #fff !important;
                    background-color: #666;
                    text-decoration: none;
                  }
                }

                .btn-danger {
                  border: 1px solid #e1251b;
                  color: #e1251b;

                  &:hover {
                    border: 1px solid #e1251b;
                    background-color: #e1251b;
                    color: white !important;
                    text-decoration: none;
                  }
                }
              }
            }
          }
        }
      }

      .page {
        width: 733px;
        height: 66px;
        overflow: hidden;
        float: right;
      }
    }
  }
}
</style> 